Possible Clues:

• "Not on your life!"
• ''Not on your life!''
• 'In a pig's eye!'
• Defiant response
• To the North, would this veer with her inside? Certainly not
• I refuse runs yet will run around
• SF writer's last two characters given a lead role — surely not!
• 'No way, no how!'
• Emphatic refusal from Guinevere
• Not time for this